CHG: just made sure it uses a default file name now.

[proxmark3-svn] / client / lualibs / utils.lua

diff --git a/client/lualibs/utils.lua b/client/lualibs/utils.lua
index a968fde2a90c3b2218b6e67aa005bdeec7486db6..da1797582132a1781831cfbb0e848cef27f4e91d 100644 (file)
--- a/client/lualibs/utils.lua
+++ b/client/lualibs/utils.lua
@@ -37,9 +37,7 @@ local Utils =
        ------------ FILE READING\r
        ReadDumpFile = function (filename)\r
        \r
-               if filename == nil then \r
-                       return nil, 'Filename is empty'\r
-               end\r
+               filename = filename or 'dumpdata.bin'\r
                if #filename == 0 then\r
                        return nil, 'Filename length is zero'\r
                end\r
@@ -99,7 +97,33 @@ local Utils =
                end\r
                return nil\r
        end,\r
-       \r
+\r
+       ------------ SHA1 hash\r
+       -- Takes a string and calculates a SHA1 hash\r
+       Sha1 = function(s)\r
+               if s == nil then return nil end\r
+               if #s == 0 then return nil end\r
+               if  type(s) == 'string' then\r
+                       local utils = require('utils')\r
+                       --local asc = utils.ConvertHexToAscii(s)\r
+                       local hash = core.sha1(s)\r
+                       return hash\r
+               end\r
+               return nil\r
+       end,    \r
+       -- Takes a hex string and calculates a SHA1 hash\r
+       Sha1Hex = function(s)\r
+               if s == nil then return nil end\r
+               if #s == 0 then return nil end\r
+               if  type(s) == 'string' then\r
+                       local utils = require('utils')\r
+                       local asc = utils.ConvertHexToAscii(s)\r
+                       local hash = core.sha1(asc)\r
+                       return hash\r
+               end\r
+               return nil\r
+       end,    \r
+\r
        \r
        -- input parameter is a string\r
        -- Swaps the endianess and returns a number,  \r